FR2129538A5 - - Google Patents

Info

Publication number
FR2129538A5
FR2129538A5 FR7208171A FR7208171A FR2129538A5 FR 2129538 A5 FR2129538 A5 FR 2129538A5 FR 7208171 A FR7208171 A FR 7208171A FR 7208171 A FR7208171 A FR 7208171A FR 2129538 A5 FR2129538 A5 FR 2129538A5
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7208171A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19712111626 external-priority patent/DE2111626C/de
Application filed by Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Application granted granted Critical
Publication of FR2129538A5 publication Critical patent/FR2129538A5/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Safety Valves (AREA)
  • Fluid-Driven Valves (AREA)
FR7208171A 1971-03-11 1972-03-09 Expired FR2129538A5 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712111626 DE2111626C (de) 1971-03-11 Druckluftgesteuertes Ventil für hydraulische Zylinder des Grubenausbaus

Publications (1)

Publication Number Publication Date
FR2129538A5 true FR2129538A5 (enExample) 1972-10-27

Family

ID=5801171

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7208171A Expired FR2129538A5 (enExample) 1971-03-11 1972-03-09

Country Status (2)

Country Link
FR (1) FR2129538A5 (enExample)
GB (1) GB1368654A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2322319A1 (fr) * 1975-08-23 1977-03-25 Saarbergwerke Ag Soupape de detente reliant les deux verins d'un etancon hydraulique telescopique a deux etages

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8422927D0 (en) * 1984-09-11 1984-10-17 Bestobell Uk Ltd Control valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2322319A1 (fr) * 1975-08-23 1977-03-25 Saarbergwerke Ag Soupape de detente reliant les deux verins d'un etancon hydraulique telescopique a deux etages

Also Published As

Publication number Publication date
DE2111626B1 (de) 1972-03-09
GB1368654A (en) 1974-10-02

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Legal Events

Date Code Title Description
ST Notification of lapse